10245531021 has 8 divisors (see below), whose sum is σ = 14902590624. Its totient is φ = 6209412720.

The previous prime is 10245531019. The next prime is 10245531059. The reversal of 10245531021 is 12013554201.

It is a happy number.

10245531021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 10245531021 - 2¹ = 10245531019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 10245530982 and 10245531000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10245531011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 155235286 + ... + 155235351.

It is an arithmetic number, because the mean of its divisors is an integer number (1862823828).

Almost surely, 2^10245531021 is an apocalyptic number.

10245531021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10245531021 is a deficient number, since it is larger than the sum of its proper divisors (4657059603).

10245531021 is a wasteful number, since it uses less digits than its factorization.

10245531021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 310470651.

The product of its (nonzero) digits is 1200, while the sum is 24.

The spelling of 10245531021 in words is "ten billion, two hundred forty-five million, five hundred thirty-one thousand, twenty-one".